Test system for automatically making static and dynamic tests on an electronic device



Jan. 21, 1969 J. H. ALFORD ET AL 3,423,577

TEST SYSTEM FOR AUTOMATICALLY MAKlNG STATIC AND DYNAMIC TESTS ON ANELECTRONIC DEVICE Filed Dec. 7, 1965 Sheet of 28 FIG. 3

(may MM ATTORNEY INVENTORS:

JOHN H. ALFORD, ET. AL.

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J. H. ALFORD ET AL 3,423,677

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Jan. 21, 1969 J. H. ALFORD ET AL 3,423,677

TEST SYSTEM FOR AUTOMATICALLY MAKING STATIC AND DYNAMIC TESTS ON ANELECTRONIC DEVICE Filed Dec. 7. 1965 Sheet 3 of 28 FEEDBACK REG! STER g8FEEDBACK REGI STE R PULSE CODE 8 LOGIC LEVEL TRANSFORMER TRANSLATORSFIG. 13a

PULSE SHAPER DlGlAL SYNC 704 MEMORY 8s INTERFACE CLOCK SOURCE FIG. I4

Jan. 21, 1969 J. H. ALFORD ET AL 3,423,677 TEST SYSTEM FOR AUTOMATICALLYMAKING STATIC AND DYNAMIC TESTS ON AN ELECTRONIC DEVICE Filed Dec. 7,1965 Sheet 13 of 28 DECADE DECADE REGISTER REGISTER UNITS "s,s FEEDBACK3 FEEDBACK c REGI STER g REGISTER FIG. 13b

Jan. 21, 1969 H, ALFORD ET AL 3,423,677

TEST SYSTEM FOR AUTOMATICALLY MAKING STATIC AND DYNAMIC TESTS ON ANELECTRONIC DEVICE Sheet Filed Dec. 7, 1965 REFERENCE SAMPLE CLOCKVARIABLE CLOCK DELAYED FIG. 13c

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TEST SYSTEM FOR AUTOMATICALLY MAKING STATIC AND DYNAMIC TESTS ON ANELECTRONIC DEVICE Filed Dec. 7, 1965 Sheet of 28 Jan. 21. 1969 J. H.ALFORD ET AL LES: SYSTEM FOR AUTOMATICALLY MAKING STATIC AND DYNAMICTESTS ON AN ELECTRONIC DEVICE Sheet of 28 Filed Dec. 7, 1965 mmkmamm 0&5

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Jan. 21, 1969 J, H. ALFORD ET AL 3,423,677

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